Mounting holder



FIG. 1 is a top view showing the invention;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a top perspective view of FIG. 1;

FIG. 4 is a side elevation view of FIG. 1;

FIG. 5 is an opposite side elevation view of FIG. 4;

FIG. 6 is a side elevation view of FIG. 1; and,

FIG. 7 is an opposite side elevation view of FIG. 6.

Portions of the mounting holder shown in broken lines form no part of the claimed design. 

The ornamental design for a mounting holder, as shown and described. 